Science

Which of the following illustrates mechanical weathering?

1.Carbonic acid weathers marble and limestone.

2.As plants grow, they produce weak acids that slowly dissolve rock.

3. Oxidation causes weathering in rock.

4. Repeated freezing and thawing in rocks causes weathering.

Please help me :D

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  1. freezing and thawing are mechanical processes which crack rock.

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    bobpursley
  2. the secound

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